Skylake 微架構執行 VISC ?? Inverse Hyper-Threadin??

peterlin2010

最近有人發現甫推出的  Skylake 微架構，單執行緒效能高出 Haswell 許多，令人懷疑 Intel 是否已經實作逆（反）超執行緒技術。




美國德克薩斯州大學奧斯汀分校、Calxeda 和 Intel 的研究人員，於 2012 年發表有關於 MorphCore 的論文，Soft Machines 也在 2014 年發表 VISC 架構，以上 2 件事情都在解決目前多處理核心的效率問題，提升整體系統效能。
此技術中文大多稱為逆（反）超執行緒，英文為 Reverse Hyper-Threading 或是 Inverse Hyper-Threading。概念剛好和超執行緒相反，單一執行緒將在多個處理核心上同時處理，解決目前半導體技術往上提升時脈的耗電量和發熱問題，對於作業系統和軟體開發也更為簡單。

有人知道嗎?

Soft-Machines-VISCtm-Architecture-Tech-Briefing-vF.pdf (894.21 KB, 下载次数: 19 )

2015-8-19 07:17 上传

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techbang 是這篇  

VISC


SOFT MACHINES TARGETS IPC BOTTLENECK.pdf (749.11 KB, 下载次数: 20 )

2015-8-19 07:17 上传

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MORE
CPU startup claims to achieve 3x IPC gains with VISC architecture
by Scott Wasson                         — 2:22 PM on October 23, 2014

A Silicon Valley startup known as Soft Machines has just exited its "stealth" phase and is presenting at the Linley Microprocessor Conference today. The firm is introducing a new CPU architecture that it calls VISC.
In its press release, Soft Machines claims that the "VISC architecture achieves 3-4 times more instructions per cycle (IPC), resulting in 2-4 times higher performance per watt on single- and multi-threaded applications" than today's CISC- and RISC-inspired CPU designs. Those claims are attention-grabbing, since Intel's high-end CPUs have been limited to per-clock performance gains on the order of 5-15% for a number of generations.
The press release doesn't go into any great detail about how VISC works, but it does offer some sense of what's involved:

smrecnik

thanks guy